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More memory fixes (nw)

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This commit is contained in:
Olivier Galibert 2020-02-13 21:48:51 +01:00
parent 0fca074a99
commit f907c7bfd5
1 changed files with 44 additions and 3 deletions
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47
src/mame/drivers/xavix2.cpp
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@ -68,6 +68,8 @@ private:
u8 debug_port_r();
u8 debug_port_status_r();
void crtc_w(offs_t reg, u16 data);
virtual void machine_start() override;
virtual void machine_reset() override;
@ -178,17 +180,50 @@ u8 xavix2_state::debug_port_status_r()
return 1<<1;
}
/*
NTSC? (63.55us)
[:] crtc[0] = 50034 (c372)
[:] crtc[1] = 463 (1cf)
[:] crtc[2] = 6760 (1a68)
[:] crtc[3] = 522 (20a)
[:] crtc[4] = 770 (302)
[:] crtc[5] = 525 (20d)
[:] crtc[6] = 9 (9)
[:] crtc[7] = 15 (f)
[:] crtc[8] = 3 (3)
[:] crtc[9] = 3 (3)
[:] crtc[10] = 3 (3)
[:] crtc[11] = 43 (2b)
PAL? (64us)
[:] crtc[0] = 49924 (c304)
[:] crtc[1] = 457 (1c9)
[:] crtc[2] = 6758 (1a66)
[:] crtc[3] = 545 (221)
[:] crtc[4] = 765 (2fd)
[:] crtc[5] = 627 (273)
[:] crtc[6] = 8 (8)
[:] crtc[7] = 13 (d)
[:] crtc[8] = 3 (3)
[:] crtc[9] = 3 (3)
[:] crtc[10] = 3 (3)
[:] crtc[11] = 23 (17)
*/
void xavix2_state::crtc_w(offs_t reg, u16 data)
{
logerror("crtc[%d] = %d (%x)\n", reg, (u32)data, data);
}
void xavix2_state::mem(address_map &map)
{
map(0x00000000, 0x0000ffff).ram().share("mainram");
map(0x00000000, 0x0000ffff).ram();
map(0x00010000, 0x00ffffff).rom().region("maincpu", 0x010000);
map(0x40000000, 0x40ffffff).rom().region("maincpu", 0);
map(0xc0000000, 0xc000ffff).ram().share("mainram");
map(0xc0010000, 0xc001ffff).ram();
map(0xc0000000, 0xc001ffff).ram();
map(0xffffe000, 0xffffe003).w(FUNC(xavix2_state::dma_src_w));
map(0xffffe004, 0xffffe005).w(FUNC(xavix2_state::dma_dst_w));
@ -199,8 +234,11 @@ void xavix2_state::mem(address_map &map)
map(0xffffe238, 0xffffe238).rw(FUNC(xavix2_state::debug_port_r), FUNC(xavix2_state::debug_port_w));
map(0xffffe239, 0xffffe239).r(FUNC(xavix2_state::debug_port_status_r));
map(0xffffe60a, 0xffffe60a).lr8(NAME([]() { return 0x40; })); // pal/ntsc
map(0xffffe630, 0xffffe631).lr16(NAME([]() { return 0x210; }));
map(0xffffe632, 0xffffe633).lr16(NAME([]() { return 0x210; }));
map(0xffffe634, 0xffffe64b).w(FUNC(xavix2_state::crtc_w));
map(0xfffffc00, 0xfffffc00).r(FUNC(xavix2_state::irq_level_r));
}
@ -212,6 +250,9 @@ uint32_t xavix2_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap
void xavix2_state::machine_start()
{
m_dma_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(xavix2_state::dma_end), this));
m_maincpu->space(AS_PROGRAM).install_write_tap(0x7c0, 0x7c3, "7c0", [this](offs_t offset, u32 &data, u32 mem_mask) { logerror("write %x, %x @ %x (%x)\n", offset, data, mem_mask, machine().describe_context()); });
m_maincpu->space(AS_PROGRAM).install_write_tap(0xc00007c0, 0xc00007c3, "7c0", [this](offs_t offset, u32 &data, u32 mem_mask) { logerror("write %x, %x @ %x (%x)\n", offset, data, mem_mask, machine().describe_context()); });
}
void xavix2_state::machine_reset()